Palate plate



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Patented July 17, 1934 UNITED STATES PATENT @FFNIE PALATE PLATE HermannKuhlmann and Herman August Kuhlmann, Berlin, Germany 5 Claims.

Our invention refers to castings being reproductions of part of thepalate and fit for use as dental protheses.

Hitherto such castings have been produced mainly by first producing apositive plaster of Paris casting of the palate and thereafter making areproduction of the surface of this casting by means of a plastic rubbercomposition or by pressing sheet metal into shape in contact therewith.

Obviously the reproduction of the palate obtained in this manner willnot be as perfect as is desired in many cases.

According to the present invention we are enabled to produce castingsbeing absolutely true reproductions of the palate so that we are in aposition to produce palate plates which apply themselves to the palatesurface so closely that no separate suction means are required to keepthe plate in permanent contact with the palate.

In the production of true castings according to the present invention Weuse spongy gold being a plastic compressible material having a spongy orcellular character, which is available on the market under diiferenttrade names.

In preparing palate plates according to our in vention we first producean ordinary positive casting with plaster of Paris, stence or some othersuitable plastic material as usual, and we then force the spongy gold bypressure onto the reproducing surface of the casting, compressing thespongy gold so as to expel the air included therein and to cause theparticles of the metal to enter into and intimately apply themselvesagainst all parts of the surface to be reproduced.

Obviously the reproductions thus obtained, which consist of formerlyloose and spongy material compressed to form a solid body, can bereinforced by means of backings of higher resistivity such as solidgold, steel or ebonite plates etc.

The palate plates produced in this manner, are considerably truer thanthe reproductions formerly obtained, and will fit tightly on every pointof the palate so that no separate sucking means need be provided.

Various changes may be made in the details disclosed in thespecification without departing from the invention or sacrificing theadvantages thereof.

We claim:-

1. As a new article of manufacture a palate plate comprising a phu'alityof layers, one of said layers being made from compressed spongy gold,the other layer comprising a reinforcing material.

2. As a new article of manufacture a palate plate comprising a pluralityof layers, one of said layers being made from compressed spongy gold,the other layer comprising a solid gold plate united with and supportingsaid first layer.

3. As a new article of manufacture a palate plate comprising a pluralityof layers, one of said layers being made from compressed spongy gold,the other layer comprising a steel plate united with and supporting saidfirst layer.

4. As a new article of manufacture a palate plate comprising a pluralityof layers, one of said layers being made from compressed spongy gold,the other layer comprising an ebonite plate united with and supportingsaid first layer.

5. A palate plate comprising a plurality of layers secured together, oneof which constitutes a reinforcing layer, the other of which constitutesa palate conforming layer, said last mentioned layer consisting ofcompressed gold of the class comprising sponge gold and crystal gold.

HERMANN KUHLMANN. HERMANN AUGUST KUHLMANN.

